> On 09.04.2015, at 16:56, Chris Muller <asqueaker at gmail.com> wrote:
> 
>> Tim Felgentreff uploaded a new version of Collections to project The Trunk:
>> http://source.squeak.org/trunk/Collections-tfel.613.mcz
>> 
>> ==================== Summary ====================
>> 
>> Name: Collections-tfel.613
>> Author: tfel
>> Time: 9 April 2015, 9:09:08.368 am
>> UUID: 9e6e47d3-17ac-f847-976f-40872d002ab8
>> Ancestors: Collections-bf.612
>> 
>> Fix replaceFrom:to:with:startingAt: for ByteArray if run on a VM without primitive 105
>> 
>> =============== Diff against Collections-bf.612 ===============
>> 
>> Item was added:
>> + ----- Method: ByteArray>>at:put: (in category 'accessing') -----
>> + at: index put: value
>> +       <primitive: 61> "try primitiveAtPut, convert value to integer if that fails and try again"
>> +       ^ self byteAt: index put: value asInteger
> 
> Egads!  This is a performance critical method that has now been slowed by half!
> 
>     old version:    '94,500,000 per second. 10.6 nanoseconds per run.'
>   new version:     '49,400,000 per second. 20.3 nanoseconds per run.'

What exactly are you testing?

- Bert -



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